Single-trigger firearm.



No. 747,191. 7 PATENTED DEG. 15,1903. A. E. LARD. SINGLE TRIGGER FIREARM.

APPLIUATIOH FILED DBO. 4, 1901.

3 SHEETS-SHEET 1.

July 12 HO MODEL.

M 4 flllau Zwwif 44 M A 64mm I ladfllowzegw No. 747,191. PATENTED DEC. 15, 1903.

A. E. LARD.

SINGLE TRIGGER FIREARM.

APPLICATION FILED DEC. 4, 1901.

H0 MODEL. 3 SHEETS-SHEET 2.

No. 747,191. v Patented December 15, 1903.

UNITED STATES ALLAN EDWARD LARD, or'sr. JOSEPH, MISSOURI.

SINGLE-TRIGGER FIREARM.

SPECIFICATION formingpart of Letters Patent No. 747,19Ifiiated December 15, 1903.

Application filed December 4,1901. Serial No- 84,661. (No model.)

To all whom it may concern: ing my invention, Figure 1 is a view in side Be it known that I, ALLAN EDWARD LARD, elevation of the breech mechanism of a denof St. Joseph, in the county of Buchanan and blebarreled shotgun made in accordance 55 State of Missouri, have invented certain new with my invention, illustrating the position and useful Improvements in Firearms; and of the parts after the cooking of the hammer I do hereby declare that the following is a and before the trigger is pulled to release the full, clear, and exact description thereof, refsaid hammer. Fig.2 is a similar view showerence being had to the accompanying drawing the position of the parts after the trigger 6o ings, and to the letters of reference marked has been pulled to the the first barrel. Fig. thereon, which form a part of this specifica- 3 is a similar viewshowing the position of tion. the parts after the discharge of the second This invention relates to firing mechanism. barrel. Fig. 4 is a view in side elevation, for firearms of that class set forth in my prior showing the side of the breech mechanism 65 United Letters Patent, No. 636,050, dated opposite that shown in Figs. 1, 2, and 3, Octob r 31, 1899, wherein a single trigger is with the parts in the position shown in Fig. used to fire a plurality of barrels. 1 or in the position which they occupy before The present invention embraces certain the firing of the first barrel. Fig. 5 is a view improvements in firing mechanisms of the similar to Fig. 2, showing the changed posi- 7o kind referred to. tion of the weight due to the rec oil. Fig. 6 isa One object of the present invention is to side elevationof the firing-platedetached from provide means by which a very light triggerthe other parts. Fig. 7 is a plan view of the spring may be employed, thereby obtaining same. Fig. Sis a side elevation of the pivoted a lighter trigger pull without liability of a weight. Fig. 9is an end elevation of the same. 75 double discharge or the firing of asecond Fig. 10 is a view, partly in side elevation and barrel when the trigger is pulled in the dispartly in longitudinal verti al section, taken charge of the first barrel and by which a gun on line 10 10 of Fig. 7, of the firing plate equipped with a non-automatic safety device with the pivoted weight in position thereon.

will be prevented from being discharged by Fig. 11 is an enlarged detail side elevation of 80 the jarring of the firing mechanism when the the spur-lever and check-stud, illustrating 3o barrels are suddenly and forcibly closed after the position of these parts prior to the firing of loading. the first barrel when the said spur-lever is en- Other objecls of the present invention are gaged with the said check-stud. Fig. 12 is a to provide an improved construction in safety detail side view of the check-stud. Fig. 13 85 devices adapted to hold the firing mechanism is a detail side elevation of the spur-lever. from action, to provide an improved selective Fig. 14 is a detail side elevation of the firing or reversing device whereby either barrel plate, together with the reversal or selective may be fired first in the pulling of the trig er, device associated therewith to enable either as desired by the user of the gun, and to barrel to he fired first. Fig. 15 is a similar. 90 avoid the necessity of using resetting devices view showing a changed position of the parts. 0 operated in the act of reloading the arm, Fig. 16 is a sectional detail plan view of the such as are shown in said prior patent, No. parts shown in Figs. 14 and 15, taken on the 636,050. 7 section-line 16 16 of Fig. 14. Fig. 17 is a simi- The invention is herein shown in conneclar view of the same parts, taken upon the 5 tion with a shotgun which is provided with section-line 17 17 of Fig. 15. Fig. 18 is a side two shot-barrels and locks or tiring mechanview of the slide or button by which the seism embracing two hammers, together with lective device shown in Figs. 14 to 17 is opermeans for actuating the same by successive ated. Fig. 19 is an end view of the same. Fig. pulls on a single trigger. The invention 20 is a side elevation of a modified form of ILO may, however, be applied to firearms of other the slide or button shown in Figs. 18 and 19. kinds and to those having more than two As shown in said drawings, ais the trigger, barrels. which is pivoted by a pivot b to thetrigger- In the accompanying drawings, illustratplate A, and a is the trigger-spring.

c is the firing-plate, (shown separately in Figs. 6, 7, and 10,) which is pivoted on the same pivot-pin b as the trigger a and is raised by the action of the trigger in the firing of the gun. To the upperand rear part of the firing-plate c is pivoted a spur-levers by means of a pivot-pin d. The upper end of said spurlever is connected to an upwardly-extending arm of the trigger a by a short link f. The spur e of the spur-lever e projects rearwardly and is adapted to engage a projection is on a I locking-post k, which rises from the triggerjunction with the said flanges when the said weight takes the plate A. The lower arm of the spur-lever e is connected byalight wire spring '13 with the lower arm of the firing-plate 0, so that when the trigger a has been moved by the pull thereon and the firing-plate o and'the spurlever 6 thereby raised, as represented in Fig. 2, the spur-lever e will on the release of the trigger a move forward and drop upon the check-stud 'r. The check-stud r is located on the trigger-plate, and besides holding the spur-lever in an elevated position after the first barrel is fired forms part of a device for preventing the premature firing of the first or second barrel when a light trigger-spring is used and also constitutes a means by which the use of a resetting device for restoring the parts to their initial position and operated by the breaking of the gun in the act of reloading may be dispensed with.

The firing-plate c is provided with two lateral flanges 0 extending beneath the scars N, and is also provided with a shifting selective or reversing lever u, which operates in con- 0 to eflect the firing of the barrels in succession as the firing-plate is lifted and which enables'either barrel to be fired first.

m indicates the hammers of the looks or striking mechanisms.

The firing-plate c is provided with a lower rearwardly-projecting arm a, and in said arm 0' is formed a longitudinal slot 0 in which is pivoted a lever g, weighted at its upper part, the said lever having a downwardly-projecting arm g which on the recoil of the gun moves in said slot, the weight at such time taking the position shown in Fig. 5. The lower arm 9 of the weight-lever g has a horizontal pin or projection g, which comes against the lower arm of the spur-lever e position represented in Fig. 5, thereby blocking the involuntary pull. The said weight-lever g is kept in the position represented in Fig. 1 bya light coiled spring h, occupyinga box like longitudinal recess in the lower arm c of the firing-plate c, as clearly shown in Figs. 7 and'lO.

- When the first sear is lifted, the parts are in the position shown in Fig. 2. The lever e under the action of its spring now begins to escape from under the hook 10 but the recoil drives the upper end of the weight-lever 9 forward, thus causing its lower end to strike the spur-lever e a hammer-like blow, which drives said lever e back under the hook 10 Vere to descend The spur-lever e now begins to escape from the book a second time; but the rebound of the gun from the shoulder in conjunction with the tension of the muscles causes the upper end of the weight-lever g to again swing forward and the lower end of the said lever g to again strike the spur-lever 6, but with less force than spur-lever e to descend to its lowermost position, as shown in Fig. 1. When the gun is held properly and fired in the usual manner,

the second action of the weight-lever g takes place during the involuntary pull and is unnecessary and inefiective; but when the gun is held loosely or far from the shoulder-the second action takes place before the involuntary pull and is both necessary and effect ive in the blocking of the involuntary pull.

However, if a light charge is used and the gun is held tightly and firmly the first action of the weight-lever g will cause the spur-leto its lowermost position, the recoil being insuificient todrive it farther. Thus it will the spur-lever e occupies at the time the in voluntary pull occurs depends upon the manner in which the gun is held and upon the charge used.

Now referring to those features of construction whereby I am enabled to use alight trigger-spring without liability of the second barrel being prematurely fired I place on the trigger-plate the check-stud "r, hereiubefore referred to, and-so construct the parts that a positive engagement is afiorded between the spur-lever e and the said check-stud r at the time the parts are in the position shown in Fig. 1. Such positive engagement of the spur-lever c with the stud r is affected by the employment of a notch 'r' in the stud 1' and a tooth e on the spur-lever e, these parts constitutingtwodetentsand beingadapted for interlockingengagementwhen the spu r-lever eis in its lowermost position, as clearly seen in Fig. 1'. The engaging surfaces of the tooth e and the notch 'r are,- moreover, so arranged, as

seen in Fig. 11, as to enable the lower end of the spur-lever e to swing freely backward on its pivot in the preliminary part of the trigger pull while at the same time to prevent the rear end of the firing-plate 0 being jarred up. It follows that the interlocking connection of the said spur-lever e with the stud 1* will not at all interfere with the normal action of the spur-lever e when the first sear is lifted, while at the same time no risingof the firing-plate 0 will occur until after pressure has been applied to the trigger a and the same has been moved su'fiiciently to effect the disengagement of said spur-lever e from said stud 1'.

I have .found in the device shown in my prior patent, hereiubefore referred to, when the gun is equipped with a very light triggerbefore, thus causing'said' be seen that the position which IOC spring and the parts have been carried by the recoil to their lowermost position, as seen in Fig. l, that the impact of the gun with the shoulder as it recoils has a tendency to jar the firing-platecup,thuslifting the spur-lever e up on the check-stud r, and consequently out of its holding position. Should the impact of the trigger and firing-finger occur as thegun rebounds after this escape of the spur-lever e from the checkstud 'r a premature discharge of the second barrel would occur. While I have been able to overcome this tendency by the use of a trigger-spring of a proper strength or stifiness, yet this is not always desirable, as a very light pull is often required, and by the construction herein described-that is to say, by the provision of interlocking or engaging parts on the lower end of the spur-lever e and on the'check-stnd r, the spur-lever e and check-stud 1' are positively engaged when the recoil in firing the first barrel has carried the spur-lever e to its lowermost position, as shownin Fig. 1. When the parts are in the position shown in that figure, the firing-plate 0 cannot rise until pressure is applied to the trigger, as before stated. It will also be seen that the tendency of the firing-plate to fly up and lift the soar in closing the gun after loading is likewise overcome, so that premature firing of the first barrel is rendered entirely impossible.

To avoid the necessity of using means operated through the opening of the gun in loading to reset the spur-lever e--that is, bring the parts back to their initial positionafter firing-such,for'instance,as the resetting-rod H,

- (shown in my said prior patent,No. 636,050,)

I provide the stud 'r with a top surface arranged at such an angle as to prevent the spur-lever e from sliding rearwardly 01E of said stud 1' under the action of the triggerspring, while at the same time having such inclination that when the gun is broken for loading the pressure ofone or the other of the scars on one of the flanges c of the firingplate 0 (or on the cross-head of the reversal lever) causes the spur-lever e to slide rearwardly oif of the check-stud 7', thereby bringing it into a position at the rear of said stud 'r, with its point or spur e below the projection W, as shown in Fig. 1. This construction in the check-stud 'r not only enables the said resetting-rod to be dispensed with, but enables the weight-lever g to be made smaller without any lessening of the efiectiveness of its operation.

In Fig. 1 is shown the position of the parts when both barrels are charged and the gun is ready for firing. Upon the trigger being pulled the spur-lever e is disengaged from the stud r and the first sear is lifted; but the movement of the firing-plate c is arrested before contact with the second sear occurs by engagement of the spur-lever e with the tooth as shown in Fig. 2. The action of the weight-lever 9 under the eliect of the recoil causes the parts to assume or begin to assume their lowermost holding or interlocking positions, as shown in Fig. 1. When the gun strikes the shoulder, it rebounds therefrom holding position by ,lever g in the recoil when the first barrel is and the trigger is thrown ators finger; but as the parts are then in their holding position (it being understood that by holding position is meant any position of the spur-lever e in which the spur against the operor any portion thereof is under or beneath the hook or tooth It") or on their way to their position for engagement of the spur-lever c with the stud 1' contact of the firing-plate c with the second sear is prevented by the spurlever e striking the said tooth k and should the spur-lever a reach its extreme lowermost position in the rebound of the gun from the shoulder jarring up of the firing-plate c is the spur-lever c with the said stud 'r, it being readily seen that in the absence ofinterlocking parts on the spur-lever e and stud 'r the said spur-lever e under these conditions might be jarred up over and rest on the stud 'r and that it would then be free from the tooth k spur-lever e occupies when the impact of the trigger against the finger occurs depends on tirely upon the manner in which the gun is fired and the amount and kind of powder used, it being found that the farther the gun is held from the shoulder when the first barr'el is fired the greater the amount of time which elapses between the contact of the gun with the shoulder and the subsequent impact of the trigger with the operators finger in the rebound (commonly called the involuntary pull) and that if the gun he held-at a considerable distance from the shoulder there will be time enough for the spur-lever e to move when jarred by contact of the gun with the shoulder, from its extreme lowermost position to a position on top of the stud 'r, and therefore free from the tooth 10 before theimpact of the trigger with the finger and consequentinvoluntarypull. Itfollowsthatifthere were no interlocking engagement between the spur-lever e and the stud 1' if the gun should be so bold in firing as to give time for the spur-lever e to jar from beneath the spur k and upon the top of the stud 1" the second barrel might be fired by the involuntary pull; but in the construction hereinbefore described the spur-lever e is thrown into its the action of the weightfired, and if after release of the pressure of the finger on the trigger through the recoil and before the subsequent impact of the trigger with the finger in the rebound of the gun from the shoulder the spur-lever e has time to reach its lowermost position it will become interlocked with the stud a", but will be again released from the said stud 'r and thrown back under the tooth 10 when the impact of the trigger with the finger and consequent involuntary pull occurs. It follows that, no matter how great the jar or how great the length of time that elapses between contact of the gun with the shoulder and the involuntary pull, the spur-lever prevented by the interlocking engagement of Manifestly the particular position that the too e will at no instant be free, both from the tooth k and the stud until after the involuntary pull has occurred and pressure on the trigger released,after which the spur-lever e swings to its position on top of the stud r and the parts are in position for firing the second barrel. If the trigger be now again pulled, thesecond sear will be actuated and the second barrel fired, as shown in Fig. 3. When the gun is opened for loading and the locks are thereby set or cooked, downward pressure of one of the scars on the firing-plate 0 acts to depress the same and thereby press the lower end of the spur-lever e downwardly against the check-stud r, with the effect, owing to the angle or inclination of the top surface of the said stud and spur-lever, that the .said lower end of .the spur-lever e will slip rearwardly off of the stud r and fall behind the same or into the position shown in Fig. 1. The spur-lever ewill then comeinto interlocking engagement with the stud r, as

hereinbefore described.

The interlocking connection described between the stud'r and the spur-lever e not only prevents possibility of the second barrel being fired underthe circumstances hereinbefore referred to, with a non-automatic safety device will prevent the firing of the first barrel through movement of the firing-plate 0, due to the jarring of the same when the barrels are suddenly and forcibly closed in the act of loading the arm.

When a strong or heavy trigger-spring is employed, thisis not likely to occur, but it may occur when a very light trigger-spring is used in order to obtain a very light pull. The spur-lever e, operating in connection with the hook and the notched stud 'r in the manner described, obviously constitutes an arrangement by which themovement of the firing-plate c is controlled.

To now describe the safety mechanism employed to lock the firing-plate o from movement the same is constructed as follows: w is a tang-slide on the under side of which is formed a notch 10?. a: is an angular or hellcrank lever, the upper arm of which engages the said notch 'w Said bell-crank lever is pivoted on the locking-post k. The lower arm of the lever w is located in position to swing over the arm 0 of the firing-plate c in one position of said lever or when its upper end is drawn backward by the shifting of the slide w. Said lowerarm of the levera: in the .safe position of said slide to is approximately vertical, as will be seen in Figs. 1 and 4, and when both hammers are cooked the end of the vertical arm of the lever overhangs and engages with the rear end of the rearwardly-projecting arm 0 on said firing-plate, as seen in Figs. 1 and 4, thereby preventing the firing-plate c from being raised until the slide 20 has been moved from its safe position. When one of the barrels has been discharged, if the safety-slide w be moved into but also in a gun providedits safe position, further upward movement of the firing-plate c is prevented by means of g a shoulder w ,.near the end of the vertical arm of the lever as, which shoulder is arranged to overhangthe end of the partially-raised firingplate 0 when the spur-lever e is resting on the check-stud 1a When the safety-slide w is moved forward, so as to permit of the firing of the gun, the vertical arm of the bell-crank lever a; is moved backward, so as to clear the rear or tail end of the arm 0 on the firingplate a, as illustrated in Figs. 2 and 3, at which time the firing-plate a will be free to rise on the pulling of the trigger. The safetyslide w is retained in one or the other of its two positions by a plate-spring w provided with a V-shaped end adapted to bear on a horizontal pin w, which projects laterally from the slide 11;.

When the safety mechanism is arranged for automatic operation, or, in other words, so that its slide 20 will be pushed into it-ssafe position on the opening of the gun, I employ the usualsliding boltm toeifect the the pushing back of the said slide it through the turning of the thumb-lever, ..Manifestly the safety mechanism hereinbefore described is applicable to the single-trigger firing mechanism shown in my prior patent hereinbefore referred to and other like devices, as well as to the particular form of firing mechanism hereinbefore illustrated.

To now describe the reversing mechanism or selective device, which permits the firing of either barrel first, the same is constructed as follows: On the triggerplate A is arranged a slide or button z, having an arm or shank which extends upwardly through a slot in said trigger-plate and is adapted to slide backwardly and forwardly therein. In the firingplate a, at. the level of the top of the flanges 0 is formed a horizontal slot .5, in which is pivoted on a vertical pivot-pin a T-shaped reversing-lever u, the widened end or crosshead 11. of which is adapted to swing laterally over the flanges c of the plate 0. One or the other of the laterally-projecting arms of the cross-head v. of said lever to is arranged to extend over one 'or the other of the flanges 0 0 On the side of the said leveru adjacent to the slide .2 are formed the two cam-surfaces a ta which are arranged at opposite inclinations, one forward of and the other at the rear of the pivot-pin p for the lever u, and are adapted for engagement by the upper end of the stem of said slide. When the slide or button 2 is moved backwardly or forwardly, its arm acts upon one or the other of the inclined or cam surfaces or shoulders to u to move or swing the cross-head if either to the right or left, as desired. When the slidez is pushed forwardly, the cross-head a will be thrown toward the right, and when the slide is pushed backwardly said cross-head 11, will be thrown to the left. By moving the slide, therefore, the said cross-head is brought over one or the other of the flanges c c, which IOC flanges are located under the ends of the sears ll, and thereby fills the space between one of the flanges and the sear over it, so that when the trigger is. pulled the flange c of the firing-plate cacts through one arm of the crossbead u on the sear of the barrel which is to be fired first. When the trigger is pulled to fire the second barrel, that sear is lifted by contact with the flange itself, as shown in Figs. 16 and 17. Fig. 16 shows the slide 2 moved forward to fire the right-hand barrel first, and Fig. 17 shows the slide moved backward to fire the left-hand barrel first. The slidez in each instance as it is moved strikes one or the other of the inclined shoulders a a and turns the lever on its pivot. The movement of the lever to laterally is arrested or limited by shoulders 10 11. on opposite ends of the cross-head 102, said shoulders being arranged to come into contact with the sides of the firing-plate c, as clearly shown in Figs. 16 and 17. In order to retain the slide 2 in one or the other of its two positions, a spring 2, having an angular head 2 is arranged to bear on one side or the other of a lateral pin 2 located on the shank of the slide above the trigger-plate, as shown in Figs. 14 and 15.

Fig. 20 shows a modified form of the slide .2, wherein the same is provided with a horizontal arm 2, which extends rearwardly from the shank of the slide and is provided at its end with-a bulb or matted surface, this construction enabling the part of the slide intended to be engaged by the finger to be placed in any desired location on the triggerplate, it being obvious that the arm Z may extend either forwardly or rearwardly from the shank of the slide and may be of any length desired. The advantage of the form of device for-reversing the order of firing herein shown is that the raising or lowering of the firing-plate c has no etfect on the lever u or the shank of the slide .2, which engages the same, it being obvious that the vertical inner face of said shank of the slide rests against the side edge of the lever u in both positions of the slide. Furthermore, it manifestly makes no difference whether the slide .2 be arranged to move a greater or less distance, provided that it shall pass over and act upon the cam-surfaces u when shifted,

. so that no great care is required in adjusting the slide .2 so far as its length of movement is concerned. At the same time the slide arranged as describedalways holds the reversing-lever firmly in either its right or:

left hand position.

I claim as my invention- 1. A single-trigger firing mechanism for a multiple-barrel firearm, embracing a firihgplate, means acting to arrest the movement of the firing-plate after the firing of the firstbarrel, means acting to permitfurther movement of said firing-plate for firing the second barrel,

and locking means disengaged by movement of the trigger in pulling, and acting to preventthe actuation of the firing-plate through theelfect of jar or impact.

2. A single-trigger firing mechanism for multiple-barrel guns, embracing a firingplate, a trigger, and detents one of which acts to hold the firing-plate from accidental movement before the firing ofith' first barrel and the other of said detents acting to block the firing movement of the said firing-plate after the firing of the first barrel.

3. The combination with a plurality of locks,of a single trigger,a firing-plate,adetent pivoted to the firing-plate and connected with the trigger, a projection which is engaged by the detent to arrest the movement of the firing-plate after the firing of the first barrel, and a stud having interlocking engagement with the detent when the latter is in its initial position acting to hold the firing-plate from accidental rising, said detent when disengaged from said stud by the pulling of the trigger in firing the first barrel, being thrown into position for contact with the said projection.

4. The combination with a plurality of locks, a firing-plate and a single trigger, of means acting to control the inovementof the firing-plate to prevent the second barrel being fired when the trigger is pulled for firing the first barrel and also by the involuntary pull, and means operated by the recoil acting to bring the parts into engaging relation in such a manner that they will remain engaged and prevent the firing of the second barrel in the recoil of ,the gun, regardless of time and jar, until disengaged by the involuntary pull, whereby said involuntary pull will be always blocked when impact of the trigger with the firing-finger occurs. I

' 5. The combination with a plurality of locks, a firing-plate and a single trigger, of a detent pivoted to the firing-plate, and connected with the trigger, a projection. on the frame for engagement with said detent after the firing of the first barrel, a pivoted weight which acts in the recoil to throw the detent into its holding position, and a stud on the frame for interlocking engagement with the said detent to hold the firing-plate from rising, whereby the pulling of the trigger for firing the first barrelwill release the detent from the stud.

6. The combination with a plurality of locks, of a single trigger, a firing-plate which acts successively upon the sears of said locks, a detent which controls the movement of the firing-plate, and means operated by the pressure on the firing-plate of one of the sears in the act of setting or cooking the locks, operating to bring the parts back to their initial position.

7'. The combination with a plurality of locks, of a single trigger, a firing-plate, adetent pivoted to the firing-plate and connected with the trigger, a projection which engages the detent, to arrest the movement of the firing-plate after firing the first barrel, and a stud located in position to engage the detent when in its retracted or releasing position, the top surface of said stud being inclined whereby the detent will slip therefrom into its lowermost position when the firing-plate is depressed by one of the sears in setting or cocking the locks.

8. The combination with a single trigger, a firing-plate which moves with but has a movement relative to the trigger, a detent pivoted to the firing-plate and con nected with the trigger, a post which engages the detent to arrest the movement of the firing-plate after firing the first barrel, a movable weight operated by the recoil and acting on said detent to retain the same in its holding position during the involuntary pull on the trigger, a tang safety-slide and a pivoted lever one end of which is operated by the safety-slide and the other end of which is swung into or out of the path of the firing-plate when the safetyslide is shifted.

9. The combination with a single trigger and a firing-plate, of a tang safety-slide, and

a pivoted lever,.the upper arm of which engages the slide and the lower arm of which is swung into and out of the path of the firingof the lever having anauxiliary shoulder for plate when the slide is shifted, said lower arm o engagement with the firing-plate to preve..t 3 the firing'of the second barrel.-

10. The combination with locks provided with sears, of a trigger, a firing-plate, a reversing-lever, a movable actuating member, and means embracing laterally-acting camsurfaces on said actuating member for giving movement to the reversing-lever through the shifting of the actuating member.-

11. The combination with locks provided with sears, of a trigger, a firing-plate rovided with flanges, a reversing-lever pivdfe'd to the firing-plate, and means for actuating said lever comprising cam-surfaces located on the side edges of the said reversing-lever 45 one at the rear and the other forward of the pivot of the lever, and a slide on the frame adapted to act on said cam-surfaces.

In testimony that I claim the foregoing as myinvention Iaffix mysignature, in presence 50 of two witnesses, this 29th day of November,

, ALLAN EDWARD LARD. Witnesses:

JOHN W. PETERSON, HERSCHEL BARTLETT. 

